NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days — NPA 309
ONVOY, LLC 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2026-08-26 309-951 0XXX which blocks → ONVOY, LLC 224C WASHINGTON IL
2024-06-03 309-800 0XXX8XXX which blocks → ONVOY, LLC 224C LEXINGTON IL
2024-06-03 309-960 0XXX9XXX which blocks → ONVOY, LLC 224C KIRKWOOD IL
2023-06-26 309-708 2XXX which blocks → ONVOY, LLC 224C MINIERAGTN IL
2023-06-26 309-815 2XXX5XXX · 2 holders which blocks → ONVOY, LLC 224C STANFORD IL
2023-06-26 309-952 2XXX which blocks → ONVOY, LLC 224C ALPHA IL
2023-02-07 309-918 7XXX8XXX which blocks → ONVOY, LLC 224C KEWANEE IL
2022-09-26 309-309 0–9 XXXwhole prefix which blocks → ONVOY, LLC 224C WASHINGTON IL
2021-10-05 309-904 4XXX which blocks → ONVOY, LLC 224C JOY IL
2021-10-05 309-905 5XXX which blocks → ONVOY, LLC 224C NEW BOSTON IL
2021-10-05 309-908 0XXX8XXX · 2 holders which blocks → ONVOY, LLC 224C WASHBURN IL
2021-10-05 309-915 0XXX5XXX6XXX · 2 holders which blocks → ONVOY, LLC 224C TREMONT IL
2021-08-05 309-260 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC 224C BLOOMINGTN IL
2021-07-28 309-384 0XXX3XXX4XXX5XXX · 3 holders which blocks → ONVOY, LLC 224C EDELSTEIN IL
2021-06-24 309-223 0XXX2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → ONVOY, LLC 224C NORTHPEKIN IL
2021-06-24 309-225 2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → ONVOY, LLC 224C KEITHSBURG IL
2021-04-30 309-910 0XXX1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC 224C EDGINGTON IL
2021-04-18 309-983 3XXX8XXX · 2 holders which blocks → ONVOY, LLC 224C ELLSWORTH IL
2021-04-18 309-993 2XXX3XXX4XXX7XXX · 3 holders which blocks → ONVOY, LLC 224C ARROWSMITH IL
2020-02-24 309-903 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC 224C ROCKISLAND IL
2018-11-15 309-590 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C BLOOMINGTN IL
2018-09-21 309-650 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC 224C PEKIN IL
2018-09-21 309-780 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC 224C TALBOTT IL
2018-09-21 309-790 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC 224C TOPEKA IL
2018-09-20 309-610 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC 224C FORESTCITY IL
2018-09-20 309-640 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC 224C HAVANA IL
2017-09-21 309-271 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC 224C PEORIA IL
2017-03-20 309-316 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC 224C DELAVAN IL
2015-11-17 309-541 0XXX1XXX3XXX5XXX6XXX · 3 holders which blocks → ONVOY, LLC 224C GALESBURG IL
2015-03-05 309-601 not yet reported which blocks → ONVOY, LLC 224C MOLINE IL
2015-03-05 309-607 not yet reported which blocks → ONVOY, LLC 224C ROCKISLAND IL
2009-04-06 309-857 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC 224C PEORIA IL
2008-12-15 309-981 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC 224C PEORIA IL
2003-01-17 309-505 1XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC 224C SUNNYLAND IL
2002-10-16 309-220 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC 224C WASHBURN IL
2002-10-16 309-240 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC 224C DUNLAP IL
2002-10-16 309-250 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC 224C EDELSTEIN IL
2002-10-16 309-290 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC 224C MINERAL IL
2002-10-16 309-301 0XXX1XXX2XXX3XXX5XXX6XXX7XXX · 3 holders which blocks → ONVOY, LLC 224C TOULON IL
2002-10-16 309-354 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC 224C MACKINAW IL
2002-10-16 309-356 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → ONVOY, LLC 224C HENRY IL
2002-10-16 309-395 1XXX3XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC 224C GROVELAND IL
2002-10-16 309-396 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC 224C PRINCEVL IL
2002-10-16 309-398 2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC 224C LA ROSE IL
2002-10-16 309-440 1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC 224C DEER CREEK IL
2002-10-16 309-442 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC 224C BRIMFIELD IL
2002-10-16 309-450 1XXX2XXX3XXX4XXX5XXX9XXX · 3 holders which blocks → ONVOY, LLC 224C CONGERVL IL
2002-10-16 309-455 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC 224C HOPEDALE IL
2002-10-16 309-460 1XXX2XXX3XXX5XXX8XXX · 3 holders which blocks → ONVOY, LLC 224C LOW POINT IL
2002-10-16 309-461 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → ONVOY, LLC 224C MINONK IL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.